psuiewalsh
Basement Bodging
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Dolmars seem to have built in comp. I had makitas with 185-190 stock too.
Dolmar 133
- Thread starter Fruecrue
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Fruecrue
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I measured 155 psi when I received the saw, with carbon in it. Cylinder must have been dry.
This was a pleasant surprise as I don’t plan any machine work due to piston and cylinder shape.
I’ll be happy if it stays the same when I delete the .020” base gasket and raise the exhaust port some.
This was a pleasant surprise as I don’t plan any machine work due to piston and cylinder shape.
I’ll be happy if it stays the same when I delete the .020” base gasket and raise the exhaust port some.
Fruecrue
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Without base gasket, exhaust at 106, transfers at 122, intake at 66.
Measured the bore at 2.044”
Smallest skirt width exhaust side is 1.428”
65% of bore diameter is 1.329” which would leave almost .050” at each side.
The goal will be raising exhaust to 101.
Intake needs to move from 132 duration to about 156.
Scribed the piston at 78* and measured .2” to bottom of skirt.
I may need to take some from the port and some from the skirt to avoid getting into the impulse port.
Measured the bore at 2.044”
Smallest skirt width exhaust side is 1.428”
65% of bore diameter is 1.329” which would leave almost .050” at each side.
The goal will be raising exhaust to 101.
Intake needs to move from 132 duration to about 156.
Scribed the piston at 78* and measured .2” to bottom of skirt.
I may need to take some from the port and some from the skirt to avoid getting into the impulse port.
usmcbuckwild
Buck
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Good read. Any more pics of the cyl work?
Redfin
Meh...
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Here ya go Dave. Sorted the oiler but the carb is not right. It is a cantankerous old dog but I like it.
Last edited:
Redfin
Meh...
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Not this year Man.
Redfin
Meh...
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Just to much going on this year.
I am amazed at the amout of oil these things put to the bar. Its almost 1:1
I am amazed at the amout of oil these things put to the bar. Its almost 1:1
T.Roller
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Wtf
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You can adjust the oilers John. Up from the bottom behind the clutch you will see a screw.
Your saw sounds awesome, The 133 is a great performer in stock form at 85cc's.
Redfin
Meh...
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Yepper I did see that Lee. Im just happy it oils now. Getting the clutch off this thing was quite entertaining.
